3x^2+6.77x+7.2=0

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Solution for 3x^2+6.77x+7.2=0 equation:


Simplifying
3x2 + 6.77x + 7.2 = 0

Reorder the terms:
7.2 + 6.77x + 3x2 = 0

Solving
7.2 + 6.77x + 3x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
2.4 + 2.256666667x + x2 = 0

Move the constant term to the right:

Add '-2.4' to each side of the equation.
2.4 + 2.256666667x + -2.4 + x2 = 0 + -2.4

Reorder the terms:
2.4 + -2.4 + 2.256666667x + x2 = 0 + -2.4

Combine like terms: 2.4 + -2.4 = 0.0
0.0 + 2.256666667x + x2 = 0 + -2.4
2.256666667x + x2 = 0 + -2.4

Combine like terms: 0 + -2.4 = -2.4
2.256666667x + x2 = -2.4

The x term is 2.256666667x.  Take half its coefficient (1.128333334).
Square it (1.273136113) and add it to both sides.

Add '1.273136113' to each side of the equation.
2.256666667x + 1.273136113 + x2 = -2.4 + 1.273136113

Reorder the terms:
1.273136113 + 2.256666667x + x2 = -2.4 + 1.273136113

Combine like terms: -2.4 + 1.273136113 = -1.126863887
1.273136113 + 2.256666667x + x2 = -1.126863887

Factor a perfect square on the left side:
(x + 1.128333334)(x + 1.128333334) = -1.126863887

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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